Hey there! I gave Purple a spin!
First off, I have to say, the level of polish on this is quite impressive. The whole visual/audio package works really well. Clean, stylish, cute; all things I love.
The controls felt pretty good, and I like the color-shifting concept, and avoiding the one color- It definitely fits the theme!
I guess overall, I have one major critique. Though I like the concept, the execution doesn't feel quite as fun as I hoped. Any time I died or fell and had to go back and re-jump on platforms over and over to make them purple, it feel more tedious than enjoyable. I know it would probably make the game way too easy, but I almost wish everything you completed "locked" to purple. There's probably a better solution than that though.
I made it to either level 6 or 7, before a big fall had me throw in the towel. I may go back and give it another spin though, the boss in your screenshots looks really cool and I'd like to see it!
Anyway, really solid entry, and I love your design sense and polish! I look forward to seeing what you do next. :)